基于TROPOMI数据的湖北省O<sub>3</sub>生成敏感性分析

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摘要基于湖北省环境空气质量站点监测的地面臭氧(O₃)数据,TROPOMI对流层HCHO和NO₂柱浓度数据,运用O₃生成敏感性的指示剂法,研究了2019~2023年湖北省O₃污染的时空分布特征、变化趋势和前体物生成敏感性.结果表明,湖北省O₃浓度总体呈上升趋势;季节上,O₃和HCHO柱浓度呈夏高冬低,NO₂则相反;空间上,O₃柱浓度值从南向北随纬度逐渐升高,NO₂和HCHO柱浓度值自西向东呈阶梯状升高.O₃控制区空间分布特征分析结果表明,6~9月湖北省大部分地区O₃生成受NO_x控制,VOCs控制区面积占比较少;湖北省东部的武汉市及周边城区属于VOCs控制区,鄂西地区主要为NO_x控制区,其余大部分地区属于协同控制区.2019年后,湖北东部地区O₃生成由VOCs控制区向NO_x-VOCs协同控制区转变.

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	杨淳棉
	黄宇
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	何泽煌
	成海容

关键词 ： TROPOMI, O₃生成敏感性, HCHO, NO₂

Abstract：Based on the ground-level ozone (O₃) data from provincial air quality stations and tropospheric HCHO and NO₂ column concentration data from TROPOMI, the spatial and temporal distributions, variation trends and precursor sensitivity of O₃ pollution in Hubei Province from 2019 to 2023 were studied by using the indicator method of O₃ generation sensitivity. The results showed that the concentration of O₃ columns in Hubei Province presented an overall upward trend. For the seasonal variations, the concentrations of O₃ and HCHO were higher in summer and lower in winter, while NO₂ was the opposite. For the spatial distributions, the concentration of O₃ column increased gradually from south to north, and the concentration of NO₂ and HCHO column increased in a stepwise manner from west to east. Through analyzing the spatial distributions of controlling factors for O₃, we found that O₃ generation in most areas of Hubei Province was controlled by NO_x from June to September, and only a small area was controlled by NO_x. Wuhan and its surrounding urban areas in eastern Hubei Province belong to the VOCs-control area, the western Hubei region mainly belongs to the NO_x-control area, the rest of the areas mostly belong to NO_x-VOCs collaborative-control area. After 2019, O₃ generation in eastern Hubei Province has changed from VOCs-control area to NO_x-VOCs collaborative control area.

Key words： TROPOMI O₃ generation sensitivity HCHO NO₂

收稿日期: 2024-06-17

PACS:

X511

基金资助:国家自然科学基金资助项目(42277093);湖北省自然科学基金(重点类)杰出青年项目(2023AFA057);校基本科研业务费专项资金资助项目(2042024kf0013)

通讯作者: 成海容,教授,chenghr@whu.edu.cn E-mail: chenghr@whu.edu.cn

作者简介: 杨淳棉(1997-),女,湖北咸宁人,博士研究生.研究方向为大气区域质量.发表论文2篇.chunmiany@163.com.

引用本文:

杨淳棉, 黄宇, 黄海滨, 何泽煌, 成海容. 基于TROPOMI数据的湖北省O₃生成敏感性分析[J]. 中国环境科学, 2025, 45(1): 50-57. YANG Chun-mian, HUANG Yu, HUANG Hai-bin, HE Ze-huang, CHENG Hai-rong. Sensitivity analysis of O₃ generation in Hubei Province based on TROPOMI data. CHINA ENVIRONMENTAL SCIENCECE, 2025, 45(1): 50-57.

链接本文:

http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2025/V45/I1/50

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